131343203031343 has 4 divisors (see below), whose sum is σ = 137053777076208. Its totient is φ = 125632628986480.

The previous prime is 131343203031259. The next prime is 131343203031347. The reversal of 131343203031343 is 343130302343131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131343203031343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131343203031299 and 131343203031308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131343203031347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2855287022398 + ... + 2855287022443.

It is an arithmetic number, because the mean of its divisors is an integer number (34263444269052).

Almost surely, 2^{131343203031343} is an apocalyptic number.

131343203031343 is a deficient number, since it is larger than the sum of its proper divisors (5710574044865).

131343203031343 is an equidigital number, since it uses as much as digits as its factorization.

131343203031343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5710574044864.

The product of its (nonzero) digits is 69984, while the sum is 34.

Adding to 131343203031343 its reverse (343130302343131), we get a palindrome (474473505374474).

The spelling of 131343203031343 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred three million, thirty-one thousand, three hundred forty-three".